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Kirill Smelkov
mariadb
Commits
c3f54ad9
Commit
c3f54ad9
authored
Aug 28, 2003
by
monty@narttu.mysql.fi
Browse files
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Browse Files
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Merge bk-internal.mysql.com:/home/bk/mysql-3.23
into narttu.mysql.fi:/my/mysql-3.23
parents
7f1ffcc4
d5ed93e8
Changes
6
Show whitespace changes
Inline
Side-by-side
Showing
6 changed files
with
198 additions
and
355 deletions
+198
-355
isam/open.c
isam/open.c
+3
-0
isam/test_all.res
isam/test_all.res
+17
-354
myisam/mi_dynrec.c
myisam/mi_dynrec.c
+1
-1
myisam/mi_open.c
myisam/mi_open.c
+2
-0
mysql-test/r/isam.result
mysql-test/r/isam.result
+2
-0
mysql-test/t/isam.test
mysql-test/t/isam.test
+173
-0
No files found.
isam/open.c
View file @
c3f54ad9
...
@@ -415,6 +415,9 @@ static void setup_functions(register ISAM_SHARE *share)
...
@@ -415,6 +415,9 @@ static void setup_functions(register ISAM_SHARE *share)
share
->
read_rnd
=
_nisam_read_rnd_dynamic_record
;
share
->
read_rnd
=
_nisam_read_rnd_dynamic_record
;
share
->
delete_record
=
_nisam_delete_dynamic_record
;
share
->
delete_record
=
_nisam_delete_dynamic_record
;
share
->
compare_record
=
_nisam_cmp_dynamic_record
;
share
->
compare_record
=
_nisam_cmp_dynamic_record
;
/* add bits used to pack data to pack_reclength for faster allocation */
share
->
base
.
pack_reclength
+=
share
->
base
.
pack_bits
;
if
(
share
->
base
.
blobs
)
if
(
share
->
base
.
blobs
)
{
{
share
->
update_record
=
_nisam_update_blob_record
;
share
->
update_record
=
_nisam_update_blob_record
;
...
...
isam/test_all.res
View file @
c3f54ad9
echo "test2 -L -K -W -P"
test2 -L -K -W -P
test2 -L -K -W -P
- Creating isam-file
echo "test2 -L -K -W -P -A"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
Write cacheing used
Locking used
test2 -L -K -W -P -A
test2 -L -K -W -P -A
- Creating isam-file
echo "test2 -L -K -W -P -S -R1 -m500"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
Write cacheing used
Asyncron io with locking used
test2 -L -K -W -P -S -R1 -m500
test2 -L -K -W -P -S -R1 -m500
- Creating isam-file
echo "test2 -L -K -R1 -m2000 ; Should give error 135"
- Writing key:s
test2 -L -K -R1 -m2000
- Delete
echo "test2 -L -K -P -S -R3 -m50 -b1000000"
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 475
Update records: 44
Same-key-read: 4
Delete records: 475
Record pointer size: 1
Key cacheing used
Write cacheing used
Locking used
test2 -L -K -R1 -m2000 ; Should give error 135
- Creating isam-file
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Read first - delete - next -> last
- Read last - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 1647
Update records: 125
Same-key-read: 8
Delete records: 1647
Record pointer size: 1
Key cacheing used
Locking used
test2 -L -K -P -S -R3 -m50 -b1000000
test2 -L -K -P -S -R3 -m50 -b1000000
- Creating isam-file
echo "test2 -L -B"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 50
Update records: 5
Same-key-read: 2
Delete records: 50
Record pointer size: 3
Key cacheing used
Locking used
test2 -L -B
test2 -L -B
- Creating isam-file
echo "test2 -L -K -W -P -m50 -l"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 903
Update records: 86
Same-key-read: 5
Delete records: 903
Locking used
blobs used
test2 -L -K -W -P -m50 -l
test2 -L -K -W -P -m50 -l
- Creating isam-file
isamlog
- Writing key:s
echo "test2 -L -K -W -P -m50 -l -b100"
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 50
Update records: 5
Same-key-read: 2
Delete records: 50
Key cacheing used
Write cacheing used
Locking used
Commands Used count Errors Recover errors
open 14 0 0
write 700 0 0
update 70 0 0
delete 700 0 0
close 14 0 0
extra 84 0 0
Total 1582 0 0
test2 -L -K -W -P -m50 -l -b100
test2 -L -K -W -P -m50 -l -b100
- Creating isam-file
isamlog
- Writing key:s
echo "time test2"
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 50
Update records: 5
Same-key-read: 2
Delete records: 50
Key cacheing used
Write cacheing used
Locking used
Commands Used count Errors Recover errors
open 15 0 0
write 750 0 0
update 75 0 0
delete 750 0 0
close 15 0 0
extra 90 0 0
Total 1695 0 0
time test2
time test2
- Creating isam-file
echo "time test2 -K"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
time test2 -K
time test2 -K
- Creating isam-file
echo "time test2 -L"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
time test2 -L
time test2 -L
- Creating isam-file
echo "time test2 -L -K"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Locking used
time test2 -L -K
time test2 -L -K
- Creating isam-file
echo "time test2 -L -K -W"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
Locking used
time test2 -L -K -W
time test2 -L -K -W
- Creating isam-file
echo "time test2 -L -K -W -S"
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
Write cacheing used
Locking used
time test2 -L -K -W -S
time test2 -L -K -W -S
- Creating isam-file
- Writing key:s
- Delete
- Update
- Same key: first - next -> last - prev -> first
- All keys: first - next -> last - prev -> first
- Test if: Read first - next - prev - prev - next == first
- Test if: Read last - prev - next - next - prev == last
- Test read key-part
- Read key (first) - next - delete - next -> last
- Read last of key - prev - delete - prev -> first
- Test if: Read rrnd - same
- Test nisam_records_in_range
- nisam_info
- nisam_extra(CACHE) + nisam_rrnd.... + nisam_extra(NO_CACHE)
- Removing keys
Following test have been made:
Write records: 907
Update records: 87
Same-key-read: 6
Delete records: 907
Key cacheing used
Write cacheing used
Locking used
myisam/mi_dynrec.c
View file @
c3f54ad9
...
@@ -62,7 +62,7 @@ int _mi_write_blob_record(MI_INFO *info, const byte *record)
...
@@ -62,7 +62,7 @@ int _mi_write_blob_record(MI_INFO *info, const byte *record)
extra
=
ALIGN_SIZE
(
MI_MAX_DYN_BLOCK_HEADER
)
+
MI_SPLIT_LENGTH
+
extra
=
ALIGN_SIZE
(
MI_MAX_DYN_BLOCK_HEADER
)
+
MI_SPLIT_LENGTH
+
MI_DYN_DELETE_BLOCK_HEADER
+
1
;
MI_DYN_DELETE_BLOCK_HEADER
+
1
;
reclength
=
(
info
->
s
->
base
.
pack_reclength
+
info
->
s
->
base
.
pack_bits
+
reclength
=
(
info
->
s
->
base
.
pack_reclength
+
_my_calc_total_blob_length
(
info
,
record
)
+
extra
);
_my_calc_total_blob_length
(
info
,
record
)
+
extra
);
if
(
reclength
>
MI_DYN_MAX_ROW_LENGTH
)
if
(
reclength
>
MI_DYN_MAX_ROW_LENGTH
)
{
{
...
...
myisam/mi_open.c
View file @
c3f54ad9
...
@@ -602,6 +602,8 @@ void mi_setup_functions(register MYISAM_SHARE *share)
...
@@ -602,6 +602,8 @@ void mi_setup_functions(register MYISAM_SHARE *share)
share
->
compare_unique
=
_mi_cmp_dynamic_unique
;
share
->
compare_unique
=
_mi_cmp_dynamic_unique
;
share
->
calc_checksum
=
mi_checksum
;
share
->
calc_checksum
=
mi_checksum
;
/* add bits used to pack data to pack_reclength for faster allocation */
share
->
base
.
pack_reclength
+=
share
->
base
.
pack_bits
;
if
(
share
->
base
.
blobs
)
if
(
share
->
base
.
blobs
)
{
{
share
->
update_record
=
_mi_update_blob_record
;
share
->
update_record
=
_mi_update_blob_record
;
...
...
mysql-test/r/isam.result
View file @
c3f54ad9
...
@@ -8,3 +8,5 @@ Table Op Msg_type Msg_text
...
@@ -8,3 +8,5 @@ Table Op Msg_type Msg_text
test.t1 repair status OK
test.t1 repair status OK
Table Op Msg_type Msg_text
Table Op Msg_type Msg_text
test.t1 check status OK
test.t1 check status OK
Table Op Msg_type Msg_text
test.t1 check status OK
mysql-test/t/isam.test
View file @
c3f54ad9
...
@@ -17,3 +17,176 @@ check table t1;
...
@@ -17,3 +17,176 @@ check table t1;
repair
table
t1
;
repair
table
t1
;
check
table
t1
;
check
table
t1
;
drop
table
t1
;
drop
table
t1
;
#
# test of table with huge number of packed fields
#
create
table
t1
(
i1
int
,
i2
int
,
i3
int
,
i4
int
,
i5
int
,
i6
int
,
i7
int
,
i8
int
,
i9
int
,
i10
int
,
i11
int
,
i12
int
,
i13
int
,
i14
int
,
i15
int
,
i16
int
,
i17
int
,
i18
int
,
i19
int
,
i20
int
,
i21
int
,
i22
int
,
i23
int
,
i24
int
,
i25
int
,
i26
int
,
i27
int
,
i28
int
,
i29
int
,
i30
int
,
i31
int
,
i32
int
,
i33
int
,
i34
int
,
i35
int
,
i36
int
,
i37
int
,
i38
int
,
i39
int
,
i40
int
,
i41
int
,
i42
int
,
i43
int
,
i44
int
,
i45
int
,
i46
int
,
i47
int
,
i48
int
,
i49
int
,
i50
int
,
i51
int
,
i52
int
,
i53
int
,
i54
int
,
i55
int
,
i56
int
,
i57
int
,
i58
int
,
i59
int
,
i60
int
,
i61
int
,
i62
int
,
i63
int
,
i64
int
,
i65
int
,
i66
int
,
i67
int
,
i68
int
,
i69
int
,
i70
int
,
i71
int
,
i72
int
,
i73
int
,
i74
int
,
i75
int
,
i76
int
,
i77
int
,
i78
int
,
i79
int
,
i80
int
,
i81
int
,
i82
int
,
i83
int
,
i84
int
,
i85
int
,
i86
int
,
i87
int
,
i88
int
,
i89
int
,
i90
int
,
i91
int
,
i92
int
,
i93
int
,
i94
int
,
i95
int
,
i96
int
,
i97
int
,
i98
int
,
i99
int
,
i100
int
,
i101
int
,
i102
int
,
i103
int
,
i104
int
,
i105
int
,
i106
int
,
i107
int
,
i108
int
,
i109
int
,
i110
int
,
i111
int
,
i112
int
,
i113
int
,
i114
int
,
i115
int
,
i116
int
,
i117
int
,
i118
int
,
i119
int
,
i120
int
,
i121
int
,
i122
int
,
i123
int
,
i124
int
,
i125
int
,
i126
int
,
i127
int
,
i128
int
,
i129
int
,
i130
int
,
i131
int
,
i132
int
,
i133
int
,
i134
int
,
i135
int
,
i136
int
,
i137
int
,
i138
int
,
i139
int
,
i140
int
,
i141
int
,
i142
int
,
i143
int
,
i144
int
,
i145
int
,
i146
int
,
i147
int
,
i148
int
,
i149
int
,
i150
int
,
i151
int
,
i152
int
,
i153
int
,
i154
int
,
i155
int
,
i156
int
,
i157
int
,
i158
int
,
i159
int
,
i160
int
,
i161
int
,
i162
int
,
i163
int
,
i164
int
,
i165
int
,
i166
int
,
i167
int
,
i168
int
,
i169
int
,
i170
int
,
i171
int
,
i172
int
,
i173
int
,
i174
int
,
i175
int
,
i176
int
,
i177
int
,
i178
int
,
i179
int
,
i180
int
,
i181
int
,
i182
int
,
i183
int
,
i184
int
,
i185
int
,
i186
int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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i814
int
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int
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i816
int
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int
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i818
int
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int
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i820
int
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int
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int
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int
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int
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int
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int
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i827
int
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i828
int
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int
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i830
int
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int
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i832
int
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int
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int
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int
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int
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int
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i838
int
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int
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i840
int
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int
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i842
int
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i843
int
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int
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int
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int
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int
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int
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int
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i850
int
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i851
int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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int
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i892
int
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i893
int
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i894
int
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int
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i896
int
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int
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i898
int
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int
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i900
int
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i901
int
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i902
int
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i903
int
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i904
int
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int
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i906
int
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int
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i908
int
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i909
int
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i910
int
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i911
int
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i912
int
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i913
int
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i914
int
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i915
int
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i916
int
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i917
int
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i918
int
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i919
int
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i920
int
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int
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i922
int
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i923
int
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i924
int
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i925
int
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i926
int
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i927
int
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i928
int
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i929
int
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i930
int
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i931
int
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i932
int
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i933
int
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i934
int
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i935
int
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i936
int
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i937
int
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i938
int
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i939
int
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i940
int
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i941
int
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i942
int
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i943
int
,
i944
int
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i945
int
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i946
int
,
i947
int
,
i948
int
,
i949
int
,
i950
int
,
i951
int
,
i952
int
,
i953
int
,
i954
int
,
i955
int
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i956
int
,
i957
int
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i958
int
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i959
int
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i960
int
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i961
int
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i962
int
,
i963
int
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i964
int
,
i965
int
,
i966
int
,
i967
int
,
i968
int
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i969
int
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i970
int
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i971
int
,
i972
int
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i973
int
,
i974
int
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i975
int
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i976
int
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i977
int
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i978
int
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i979
int
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i980
int
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i981
int
,
i982
int
,
i983
int
,
i984
int
,
i985
int
,
i986
int
,
i987
int
,
i988
int
,
i989
int
,
i990
int
,
i991
int
,
i992
int
,
i993
int
,
i994
int
,
i995
int
,
i996
int
,
i997
int
,
i998
int
,
i999
int
,
i1000
int
,
b
blob
)
row_format
=
dynamic
;
insert
into
t1
values
(
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
,
1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
,
1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
,
1
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1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
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1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
1
,
"Sergei"
);
update
t1
set
b
=
repeat
(
'a'
,
256
);
update
t1
set
i1
=
0
,
i2
=
0
,
i3
=
0
,
i4
=
0
,
i5
=
0
,
i6
=
0
,
i7
=
0
;
check
table
t1
;
drop
table
t1
;
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